Flowchart No. 8: Airflow Mode Does Not Change

Airflow mode actuator
The airflow mode actuator opens and closes the airflow mode doors by means of heater control signals and the link rod. It is equipped with sliding contacts to set the stopping position.

Step 1
1. Disconnect the airflow mode actuator connector.








2. Connect battery positive voltage to the terminals I and J of the airflow mode actuator, and check the actuator operation.
3. If correct, go to Step 2.
4. If not as specified, replace the airflow mode actuator.


Step 2








1. Check for continuity between the terminals of the airflow mode actuator for each mode.
2. If correct, go to Step 3.
3. If not as specified, replace the airflow mode actuator.


Step 3
1. Disconnect the airflow mode actuator connector and heater control unit connectors.








2. Check for continuity at the wires between the connectors.